The Eco Portable Wash-Ware Stainless Portable Sink with Waste Tank by Acorn Engineering company makes adding a new handwashing station quick and easy. This portable sink can be used inside and out, plus has optional casters for smooth transport. A standard ¾-inch hose is located beneath the sink to connect to fresh water with an integrated ball-valve to turn on and off. Wastewater is collected in a 5-gallon tank also located beneath the sink. For added security, a lock and chain can anchor the portable sink in place using the hole located in the bottom of the unit. The Eco Portable Wash-Ware Stainless Steel Portable Sink with Waste Tank arrives flat-packed for easy storage, shipment, and assembly. Simply add a compatible faucet and it’s ready for use.